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Microsoft DP-420 Questions & Answers - in .pdf

DP-420 pdf
  • Total Q&A: 206
  • Update: Oct 19, 2026
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  • Vendor: Microsoft
  • Exam Code: DP-420
  • Exam Name: Designing and Implementing Cloud-Native Applications Using Microsoft Azure Cosmos DB
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Microsoft DP-420 Q&A - Testing Engine

DP-420 Study Guide
  • Total Q&A: 206
  • Update: Oct 19, 2026
  • Price: $59.99
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  • Vendor: Microsoft
  • Exam Code: DP-420
  • Exam Name: Designing and Implementing Cloud-Native Applications Using Microsoft Azure Cosmos DB
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Reference: https://docs.microsoft.com/en-us/learn/certifications/exams/dp-420?WT.mc_id=Azure_blog-wwl

Microsoft DP-420 Exam Overview:

Certification Vendor:Microsoft
Exam Name:Designing and Implementing Cloud-Native Applications Using Microsoft Azure Cosmos DB
Exam Number:DP-420
Exam Price:$165 USD
Passing Score:700
Certificate Validity Period:12 months
Related Certifications:Microsoft Certified: Azure Solutions Architect Expert
Microsoft Certified: Azure Developer Associate
Exam Format:Drag-and-drop, Case studies, Multiple-choice, Multiple-response, Practical lab scenarios
Real Exam Qty:40-60
Available Languages:Chinese (Simplified), Japanese, English
Exam Duration:120 minutes
Recommended Training:Course DP-420T00: Designing and Implementing Cloud-Native Applications Using Microsoft Azure Cosmos DB
Exam Registration:Pearson VUE
Microsoft Learn
Sample Questions:Microsoft DP-420 Sample Questions
Exam Way:Online proctored or onsite test center
Pre Condition:No mandatory prerequisites; recommended experience: developing Azure applications, working with NoSQL databases, proficiency in C#/Java/JavaScript/Python, familiarity with Azure management
Official Syllabus URL:https://learn.microsoft.com/en-us/credentials/certifications/resources/study-guides/dp-420

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Microsoft DP-420 Exam Syllabus Topics:

SectionWeightObjectives
Topic 1: Optimize an Azure Cosmos DB solution15-20%- Work with change feed
  • 1. Trigger downstream workflows
  • 2. Process changes incrementally
- Define and implement indexing strategy
  • 1. Select index types and paths
  • 2. Exclude or include properties
- Optimize query performance
  • 1. Tune query structure and syntax
  • 2. Optimize throughput allocation
Topic 2: Design and implement data distribution5-10%- Manage data distribution and failover
  • 1. Manage regional availability
  • 2. Define failover priorities
- Design replication strategy
  • 1. Implement multi-region write
  • 2. Configure multi-region replication
Topic 3: Maintain an Azure Cosmos DB solution25-30%- Manage data movement
  • 1. Import/export data
  • 2. Migrate between APIs or regions
- Implement backup and restore
  • 1. Configure periodic backup
  • 2. Perform point-in-time restore
- Implement security
  • 1. Manage authentication and authorization
  • 2. Encrypt data at rest and in transit
- DevOps and automation
  • 1. Automate operations
  • 2. Deploy via ARM, Bicep, CLI
- Monitor and troubleshoot
  • 1. Use Azure Monitor and Application Insights
  • 2. Analyze metrics and logs
Topic 4: Design and implement data models35-40%- Design and implement non-relational data models
  • 1. Identify data and access patterns
  • 2. Configure time-to-live (TTL)
  • 3. Define primary and unique keys
  • 4. Reference between documents
  • 5. Denormalize data across documents
  • 6. Embed related entities in documents
  • 7. Store multiple entity types in one container
- Design partitioning strategy
  • 1. Plan for distribution and throughput
  • 2. Choose partition key based on workload
- Plan sizing and scaling
  • 1. Select consistency levels
  • 2. Provision throughput and storage
- Implement connectivity and data access
  • 1. Write efficient SQL queries
  • 2. Use SDKs to connect and operate
Topic 5: Integrate an Azure Cosmos DB solution5-10%- Enable analytical workloads
  • 1. Configure analytical store
  • 2. Use Synapse Link
- Integrate with Azure services
  • 1. Use with Azure Functions, Logic Apps, Event Hubs
  • 2. Connect to Azure Stream Analytics

Microsoft Designing and Implementing Cloud-Native Applications Using Microsoft Azure Cosmos DB Sample Questions:

Question #1
You have an Azure Cosmos DB for NoSQL database named db1 that writes to multiple Azure regions. You need to test the performance of db1 in the secondary region. Which command should you run first?

A. az cosmosdb sql database merge
B. az cosmosdb failover-priority-change
C. az cosmosdb network-rule remove
D. az cosmosdb location show


Question #2
You have an Azure Cosmos DB for NoSQL database that hosts a container named Container1. Container1 stores customer documents that have the following structure.

You need to retrieve the city of residence and the age of each customer who is older than 40.
Which three statements should you run in sequence to build the query? To answer, move the appropriate statements from the list of statements to the answer area and arrange them in the correct order.


Question #3
You have an application that queries an Azure Cosmos 06 for NoSQL account.
You discover that the following two queries run frequently,

You need to minimize the request units (RUs) consumed by reads and writes. What should you create?

A. a composite index for (name ASC, time stamp ASC)
B. a composite index for (name ASC, time stamp DESC)
C. a composite index for (name DESC, time stamp ASC)
D. a composite index for (name ASC time stamp ASC) and a composite index for (name, time stamp disc)


Question #4
You have an Azure Synapse Analytics workspace named workspace1 that contains a server less SQL pool.
You have an Azure Table Storage account that stores operational data.
You need to replace the Table storage account with Azure Cosmos DB for NoSQL The solution must meet the following requirements:
* Support Queries from the server less SQL pool.
* Only pay for analytical compute when running queries.
* Ensure that analytical processes do
NOTE: affect operational processes.
Which three actions should you perform in sequence? To answer, move the appropriate actions from the list of actions to the answer area and arrange them in the correct order.


Question #5
You have an on-premises computer named Computer1 that runs Windows 11.
On Computer1, you install the Azure Cosmos DB Emulator by using the default settings. You need to connect to the API for NoSQL clients hosted by the emulator. What should you use?

A. Computer1 and the credentials used when installing the emulator
B. localhost :443 and the built-in Administrator user account credentials
C. Computer1 and a randomly-generated key
D. localhost: 8681 and a well-known key


Solutions:

Question #1
Correct Answer: B
Question #2
Correct Answer: Only visible for members
Question #3
Correct Answer: A
Question #4
Correct Answer: Only visible for members
Question #5
Correct Answer: D

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DP-420 Related Exams
DP-420-KR - Designing and Implementing Cloud-Native Applications Using Microsoft Azure Cosmos DB (DP-420 Korean Version)
DP-420J - Designing and Implementing Cloud-Native Applications Using Microsoft Azure Cosmos DB (DP-420日本語版)
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